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Finding the Fourth Proportional to 355,293.30, 533,231.55 and 343,629.30

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Solution

The fourth proportional to 355,293.30, 533,231.55 and 343,629.30 is: 515,725.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,293.30 : 533,231.55 = 343,629.30 : x
  2. Step 2: Convert to fraction form
    355,293.30/533,231.55 = 343,629.30/x
  3. Step 3: Cross multiply
    355,293.30x = 533,231.55 × 343,629.30
  4. Step 4: Simplify right side
    355,293.30x = 183,233,984,264.42
  5. Step 5: Solve for x
    x = 183,233,984,264.42/355,293.30
  6. Step 6: Final answer
    x = 515,725.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.